Period
to 21 October 2019

The following table provides summary statistics for permanent job vacancies with a requirement for ISDN skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ISDN over the 6 months to 21 October 2019 with a comparison to the same period in the previous 2 years.

Integrated Service Digital Network (ISDN)
UK
6 months to
21 Oct 2019
Same period 2018 Same period 2017
Rank 976 1087 1069
Rank change year-on-year +111 -18 -40
Permanent jobs citing ISDN 100 78 146
As % of all permanent IT jobs advertised in the UK 0.073% 0.048% 0.084%
As % of the Communications & Networking category 0.47% 0.32% 0.53%
Number of salaries quoted 70 60 111
UK median annual salary £47,250 £37,500 £47,500
Median salary % change year-on-year +26.00% -21.05% +5.56%
10th Percentile £31,125 £22,950 £25,250
90th Percentile £57,500 £66,250 £67,500
UK excluding London median annual salary £44,000 £31,000 £41,500
% change year-on-year +41.94% -25.30% -

ISDN is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
UK
Permanent vacancies with a requirement for communications or computer networking skills 21,291 24,311 27,697
As % of all permanent IT jobs advertised in the UK 15.55% 14.86% 15.90%
Number of salaries quoted 16,347 19,238 22,533
UK median annual salary £45,750 £47,500 £45,000
Median salary % change year-on-year -3.68% +5.56% -
10th Percentile £25,750 £25,925 £25,750
90th Percentile £77,500 £75,000 £71,250
UK excluding London median annual salary £42,500 £42,500 £40,000
% change year-on-year - +6.25% -

ISDN
Job Vacancy Trend

Job postings citing ISDN as a percentage of all IT jobs advertised.

Job vacancy trend for ISDN in the UK

ISDN
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ISDN.

Salary trend for ISDN in the UK

ISDN
Salary Histogram

The salary distribution of IT jobs citing ISDN over the 6 months to 21 October 2019.

Salary histogram for ISDN in the UK

ISDN
Top 11 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the UK over the 6 months to 21 October 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +133 98 £47,000 +25.33% 10
UK excluding London +99 76 £44,000 +41.94% 8
South East +37 35 £52,500 +64.06% 2
North of England +39 27 £37,500 +66.67% 1
London +68 23 £47,500 +5.56% 4
Yorkshire +26 23 £37,500 - 1
East Midlands +40 11 £22,000 -26.67%
Midlands +29 11 £22,000 -38.46%
North West +42 4 £47,500 +111.11%
South West - 2 £47,500 - 3
Wales +5 1 - - 2

For the 6 months to 21 October 2019, IT jobs citing ISDN also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for ISDN.

1 56 (56.00%) LAN
1 56 (56.00%) Cisco
2 53 (53.00%) Cisco Certification
3 52 (52.00%) WAN
4 47 (47.00%) Microsoft
5 44 (44.00%) CCNP
6 41 (41.00%) Windows
6 41 (41.00%) Windows Server
7 39 (39.00%) ITIL
7 39 (39.00%) Office 365
8 38 (38.00%) MPLS
9 37 (37.00%) DHCP
10 35 (35.00%) DNS
10 35 (35.00%) Firewall
10 35 (35.00%) Azure
11 31 (31.00%) VPN
11 31 (31.00%) Infrastructure Engineering
12 30 (30.00%) CCNA
13 29 (29.00%) Ethernet
14 28 (28.00%) TCP/IP
15 26 (26.00%) Active Directory
15 26 (26.00%) SAN
15 26 (26.00%) Skype for Business
16 25 (25.00%) Skype
17 24 (24.00%) VMware
17 24 (24.00%) VoIP
17 24 (24.00%) SQL Server
17 24 (24.00%) Windows 10
18 23 (23.00%) Windows 8
18 23 (23.00%) VMware Infrastructure

ISDN
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 26 (26.00%) Skype for Business
2 15 (15.00%) IIS
3 13 (13.00%) SharePoint
4 3 (3.00%) MS Exchange
5 1 (1.00%) Blackberry Enterprise Server
5 1 (1.00%) Exchange Server 2007
5 1 (1.00%) Exchange Server 2010
5 1 (1.00%) Exchange Server 2013
Applications
1 9 (9.00%) Microsoft Office
2 1 (1.00%) Microsoft Project
Cloud Services
1 39 (39.00%) Office 365
2 35 (35.00%) Azure
3 12 (12.00%) SaaS
4 4 (4.00%) AWS
5 1 (1.00%) Azure Active Directory
5 1 (1.00%) IaaS
5 1 (1.00%) OneDrive
Communications & Networking
1 56 (56.00%) LAN
2 52 (52.00%) WAN
3 38 (38.00%) MPLS
4 37 (37.00%) DHCP
5 35 (35.00%) DNS
5 35 (35.00%) Firewall
6 31 (31.00%) VPN
7 29 (29.00%) Ethernet
8 28 (28.00%) TCP/IP
9 26 (26.00%) SAN
10 25 (25.00%) Skype
11 24 (24.00%) VoIP
12 22 (22.00%) Wireless
13 21 (21.00%) DSL
13 21 (21.00%) H.323
14 20 (20.00%) BGP
15 19 (19.00%) OSPF
16 16 (16.00%) PSTN
17 14 (14.00%) Broadband
18 13 (13.00%) ATM
Database & Business Intelligence
1 24 (24.00%) SQL Server
2 1 (1.00%) Amazon RDS
2 1 (1.00%) SQL Server 2005
2 1 (1.00%) SQL Server 2008
2 1 (1.00%) SQL Server 2012
General
1 12 (12.00%) Telecoms
2 4 (4.00%) Aerospace
3 3 (3.00%) Finance
4 2 (2.00%) Law
5 1 (1.00%) Banking
5 1 (1.00%) Investment Banking
5 1 (1.00%) Legal
5 1 (1.00%) Military
5 1 (1.00%) Public Sector
Job Titles
1 28 (28.00%) Infrastructure Engineer
2 25 (25.00%) Network Engineer
3 15 (15.00%) Cisco Engineer
4 14 (14.00%) Support Engineer
5 12 (12.00%) Analyst
6 11 (11.00%) NOC Engineer
7 10 (10.00%) Active Directory Engineer
7 10 (10.00%) Cisco Network Engineer
7 10 (10.00%) IT Engineer
7 10 (10.00%) Windows Engineer
7 10 (10.00%) Windows Infrastructure Engineer
8 8 (8.00%) 3rd Line Engineer
8 8 (8.00%) IT Infrastructure Engineer
8 8 (8.00%) Network Analyst
8 8 (8.00%) Senior Network Engineer
9 7 (7.00%) Senior Cisco Engineer
10 6 (6.00%) Infrastructure Support
10 6 (6.00%) IT Manager
10 6 (6.00%) Juniper Engineer
11 5 (5.00%) Microsoft Engineer
Libraries, Frameworks & Software Standards
1 1 (1.00%) FreeSWITCH
1 1 (1.00%) Web Services
Miscellaneous
1 11 (11.00%) CMDB
2 10 (10.00%) Analytical Skills
3 9 (9.00%) Data Centre
4 8 (8.00%) Management Information System
4 8 (8.00%) PKI
5 3 (3.00%) Video Conferencing
6 2 (2.00%) Driving Licence
6 2 (2.00%) Private Cloud
7 1 (1.00%) Clustering
7 1 (1.00%) Self-Motivation
Operating Systems
1 41 (41.00%) Windows
1 41 (41.00%) Windows Server
2 24 (24.00%) Windows 10
3 23 (23.00%) Windows 8
4 15 (15.00%) Linux
5 14 (14.00%) Windows Server 2008
6 13 (13.00%) Windows Server 2012
7 12 (12.00%) Windows Server 2003
8 11 (11.00%) Windows 7
9 8 (8.00%) Unix
10 1 (1.00%) Windows XP
Processes & Methodologies
1 39 (39.00%) ITIL
2 31 (31.00%) Infrastructure Engineering
3 19 (19.00%) Project Delivery
4 14 (14.00%) Continuous Improvement
4 14 (14.00%) Problem-Solving
5 13 (13.00%) Change Management
5 13 (13.00%) Network Management
5 13 (13.00%) Validation
6 12 (12.00%) Penetration Testing
6 12 (12.00%) Performance Monitoring
6 12 (12.00%) Process Improvement
6 12 (12.00%) Security Patching
6 12 (12.00%) Virtual Infrastructure
7 11 (11.00%) Agile Software Development
8 10 (10.00%) Network Design
8 10 (10.00%) Network Monitoring
8 10 (10.00%) Security Operations
8 10 (10.00%) Time Management
9 9 (9.00%) Proactive Management
9 9 (9.00%) WAN Optimisation
Programming Languages
1 13 (13.00%) SQL
2 1 (1.00%) PowerShell
Qualifications
1 53 (53.00%) Cisco Certification
2 44 (44.00%) CCNP
3 30 (30.00%) CCNA
4 16 (16.00%) Microsoft Certification
5 15 (15.00%) MCSE
6 13 (13.00%) Degree
7 11 (11.00%) Security Cleared
8 8 (8.00%) JNCIS
9 7 (7.00%) CCIE
10 6 (6.00%) DV Cleared
11 5 (5.00%) SC Cleared
12 3 (3.00%) MCP
13 2 (2.00%) MCSA
13 2 (2.00%) PRINCE2 Certification
14 1 (1.00%) CCVP
14 1 (1.00%) Computer Science Degree
14 1 (1.00%) ITIL Certification
14 1 (1.00%) MCITP
14 1 (1.00%) Network+ Certification
Quality Assurance & Compliance
1 18 (18.00%) SLA
2 7 (7.00%) ISO/IEC 27001
3 2 (2.00%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
4 1 (1.00%) PCI DSS
System Software
1 26 (26.00%) Active Directory
2 23 (23.00%) VMware Infrastructure
3 19 (19.00%) Hyper-V
4 14 (14.00%) XenApp
5 13 (13.00%) vSphere
6 2 (2.00%) VMware ESXi
7 1 (1.00%) Kamailio
7 1 (1.00%) Postfix
7 1 (1.00%) Squid
7 1 (1.00%) Terminal Services
7 1 (1.00%) XenDesktop
Systems Management
1 14 (14.00%) SCCM
2 12 (12.00%) WSUS
3 11 (11.00%) Cisco CUCM
4 10 (10.00%) Nessus
4 10 (10.00%) SolarWinds Orion
5 8 (8.00%) Cisco Prime
6 7 (7.00%) Cisco UCCX
7 1 (1.00%) Backup Exec
7 1 (1.00%) vCenter Server
7 1 (1.00%) XenMobile
Vendors
1 56 (56.00%) Cisco
2 47 (47.00%) Microsoft
3 24 (24.00%) VMware
4 21 (21.00%) Juniper
5 17 (17.00%) Citrix
6 14 (14.00%) F5
7 13 (13.00%) Dell
7 13 (13.00%) HP
7 13 (13.00%) Veeam
8 12 (12.00%) Mitel
8 12 (12.00%) Siemens
9 10 (10.00%) SolarWinds
10 8 (8.00%) Barracuda Networks
10 8 (8.00%) Palo Alto
11 7 (7.00%) Forcepoint
11 7 (7.00%) Red Box
12 6 (6.00%) Avaya
13 5 (5.00%) Verint
14 4 (4.00%) BT
14 4 (4.00%) NEC